A relationship so close that staying over seemed like an obvious idea. If you insisted on heading home anyways, then I think she'd walk you to your home, scolding you all the while.
Eh? You're going home?In fact, it's dangerous to head back home at this time.I've already made preparations for dinner.so I thought that you would be staying over.If you don't have any pressing matters, why don't you stay the night?You hadn't mentioned anything about it yet,